Improvement in straw-cutters



JULIUs AMBRUN, or LEAVENWORTH, KANSAS.

` Letters Patent No. 102,470, dated May 3, 1870 antedated Apr-il 28, 1870.

IMPRovanvxrnr"il IN sTRAW-CUTTERS The Schedule referred to in 'these4 Letters P atent ana making part 'of the same To all whom 'it may concern:

Be it known that I, JULIUs AMBRUN, of Leavenworth, in the county of Leavenworth and State of Kansas, have invented anew and improved Straw- Outter; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled. in the art to make and n'se the same, reference being had to the accompanying drawing forming part of this specification.

Figure 1 represents a vertical longitudinal 'section of my improved straw-cutter.

Figure 2 is a front elevation, partly in section of f the same.

Similar letters of reference indicate corresponding parts.

erate while the straw is being cut, but only when the.

cutters are moved apart.

The invention consists -irst in the use of a strap, chain, or rope passing o ver friction roller and connecting l(he two frames, so that the same will move in opposite directions.

The invention consists also in the use of a pivoted feed-rake, and its adjustable connections with the inncr reciprocating frame.

A,'in the drawing, represents the straw-box snpported on posts B B, the front posts being grooved for the reception of the vertically-reciproeating frames C D, which hold the eut-ters E F, respectively.

G is the lever, having its fnlcrum on a pi'voted bar, H, and connected by a pivot, c, with lthe front frame I is the treadle connected by a belt, l), which passes over a roller, c, with the rear or inner frame D. 'lhus far the apparatus is substantially as described in the aforesaid Letters Patent.

The two frames C D are connected with each other by a belt or chain, d, which passes around a pulley, e, whose axle has its bearings in the front posts B, as shown. By this belt d the racks and pinion described in the aforesaid Letters Patent are dispensed with, and a much more simple substitute therefor is applied.` y p When the lever Gr is swung up it will elevate the frame O and draw down the frame D. The cutters are thereby moved apart. l g

`Wh,en the straw is tube cut, the level', as well as At-he treadle or the treadle alone, 'are swung down,

causing both frames to move in ,opposite directions, and the cutters to pass eachother.

0 is an elbow crank pivoted to pendants j' or other bars or parts ofthe frame under the box A.

The horizontal arm g of this crank is, by an eye-- bolt, h, or its equivalent, connected with a bar, t',

which is fastened to the lower part 4of the frame D by` a pin, j.

Whenever the frame D is moved, the crank O is oscillated. l, g

vThe other part of the crank consists of two arms, Z I, between which a plate, P, is pivote'd. The said 'plate has its upper edge, which projects through an aperture into the straw-box, toothed or serrated. lts lower part is heavier than the upper, and-it therefore has a tendency to swing into-a vertical position, as in iin. 1. f f

lts front face at the ends lits against shoulders m on the arms Z. Then the frame D is moved flown, itcauses the crank O to swing, so as to carry the plate P forward, the lower pmt of the saine resting against the shoulders m. the plate is, during this motion, held straight, so that it will feed the straw in the box forl ward. When, however, the frame D is moved up during the cutting stroke, the crank O is swung back,

to carry the plate I backwards.

During this motion the said plate has no lower support, and swings therefore on its pivot, so as to clear the straw, which is consequently not disturbed by such motion.

R is a roller hung in the sides of the box A to hold the straw in place. The bar Ii can be lengthened o1' shortened as to its working capacity, to adjust the stroke of the feed-plate.

Having thus described my invention,

I elaimas new and dcsircto secure by Letters Patent- Y 1. The frames G D of a straw-cutter, when combined with the stra-ps or belt d and roller e, to operate substantially as herein shown and described.

2. The pivoted feed-plate P, in combination with the elbow crank O,` bar t', and reciprocating frame D, all arranged to operate substantially as herein shown HENRY HAvEKARsr, GEORG WALTER. 

